package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class JDBCDemo9 {
    public static void main(String[] args) {
        try(Connection connection=DBUtil.getConnection();) {
            connection.setAutoCommit(false);
            String sql="update user " +
                    "set password=?,nickname=?,age=? " +
                    "where id=?";
            PreparedStatement ps=connection.prepareStatement(sql);
            ps.setString(1,"123456");
            ps.setString(2,"小红");
            ps.setInt(3,18);
            ps.setInt(4,1);
            int num=ps.executeUpdate();
            System.out.println(num>0?"修改成功":"修改失败");
            connection.commit();
            System.out.println("提交成功");
            //connection.rollback();
            //System.out.println("回滚成功");
        }catch (SQLException e){
            e.printStackTrace();
        }

    }
}
